7th Class Science Acids, Bases and Salts Question Bank Acids, Bases and Salts

  • question_answer 97) Read the following statements: (i) It is a reaction between an acid and a base. (ii) Salt and water are produced in this reaction. (iii) It is an exothermic reaction. Which reaction is being referred to?

    A) Displacement reaction

    B) Neutralization reaction

    C) Redox reaction

    D) Decomposition reaction

    Correct Answer: B

    Solution :

    \[\begin{align}   & \text{HCl}\,\text{+}\,\text{NaOH}\to \text{NaCl}\,\text{+}\,{{\text{H}}_{\text{2}}}\text{O}\,\text{+}\,\text{Heat} \\  & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\begin{matrix}    \text{Salt} & \text{Water}  \\ \end{matrix} \\ \end{align}\]  

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